Air Bubbles In Fuel Line After Shutdown?

[kbguofa]

Anybody ever have this problem? When I shut the motor off, small air bubbles start coming up out of the carburetor into the fuel line. Eventually, the entire fuel line fills with air up to the gas tank. The motor starts up fine the next ride and runs great. What's going on?

 

[Mountainman]

runs great
starts good
if no leaks
should be no problem

Ride That Thing - Mountainman

 

[hill climber]

i think the fuel in the carb float bowl is evaperating very rapidly do to the heat created by the engine. someone please corect me if i am wrong. HEY! DO A WHEELIE! hill climber

 

[Slay]

hill is probably right, but I had the same issue with the lousy stock fuel valves on TWO bikes....I can't explain it.....finally one broke so I bought a couple of the sick bike valves and the fuel flows great, no bubbles and a nice solid valve.